An Example of Time Dilation

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Aug 15, 2021
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- Theory of Relativity
- Thermodynamics

Walter Fendt
Paul-Klee Gymnasium Gersthofen

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A spaceship is flying a distance of 5 light hours, for example from Earth to the dwarf planet Pluto. The speed can be regulated with the upper buttons. The app demonstrates that the clock in the spaceship goes more slowly than the two clocks of the system in which Earth and Pluto are motionless.

W. Fendt 1997, T. Mzoughi 1998

Formula:

Formula

t' ... time indicated by the spaceship clock
t ... time indicated by the clocks of the Earth-Pluto-system
v ... speed of the spacecraft relatively to the system of Earth and Pluto
c ... speed of light

Remarks:

In a simplifying way there was assumed an inertial system in which Earth and Pluto are motionless; especially the motion around the Sun was neglected.
According to an important result of the theory of relativity, an observer in the Earth-Pluto-system would see the spacecraft shortened in the direction of motion. This so-called Lorentz contraction was not taken into consideration in order to make it possible to read off the spaceship's clock.

Link the original page: https://www.walter-fendt.de/html5/ph...ilation_en.htm

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